activity
20202026
most citedHigher rank K-theoretic Donaldson-Thomas theory of points

22 citations · 102 across the 17 of their papers we have counts for

collaborators

17 papers

math.CO2026

On the combinatorics of the refined 1-leg DT/PT correspondence

Davide Accadia, Danilo Lewański, Sergej Monavari

We provide a new proof of a result of Bessenrodt on the relation among the generating series of reversed plane partitions and skew plane partitions, motivated by the geometric DT/P…

math.AG2026

Motivic and cohomological stabilisation of the Quot scheme of points

Michele Graffeo, Alexis Aumonier, Sergej Monavari +2

We prove that the motive of the punctual Quot scheme stabilises, when , to $[\mathrm{Gr}(d-1,\infty)]\cdot \s…

math.AG2025

The refined local Donaldson-Thomas theory of curves

Sergej Monavari

We solve the K-theoretically refined Donaldson-Thomas theory of local curves in arbitrary genus and degree. Our results avoid degeneration techniques, but rather exploit direct loc…

math.AG2025

Gauge origami on broken lines

Sergej Monavari

In analogy to Nekrasov's theory of gauge origami on intersecting branes, we introduce the gauge origami moduli space on broken lines. We realize this moduli space as a Quot scheme…

math.CO2025

Enumeration of partitions via socle reduction

Michele Graffeo, Sergej Monavari, Riccardo Moschetti +1

We study the enumeration problem of higher dimensional partitions, a natural generalisation of classical integer partitions. We show that their counting problem is equivalent to th…

math.AG2024

Derived hyperquot schemes

Sergej Monavari, Emanuele Pavia, Andrea T. Ricolfi

We define a derived enhancement of the hyperquot scheme (also known as nested Quot scheme), which classically parametrises flags of quotients of a perfect coherent sheaf on a proje…

math.AG2024★ 2 cited

The motive of the Hilbert scheme of points in all dimensions

Michele Graffeo, Sergej Monavari, Riccardo Moschetti +1

We prove a closed formula for the generating function of the motives of punctual Hilbert schem…

math.AG2024★ 5 cited

Hyperquot schemes on curves: virtual class and motivic invariants

Sergej Monavari, Andrea T. Ricolfi

Let be a smooth projective curve, a locally free sheaf. Hyperquot schemes on parametrise flags of coherent quotients of with fixed Hilbert polynomial, and offer alt…

math.AG2023★ 3 cited

The geometry of double nested Hilbert schemes of points on curves

Michele Graffeo, Paolo Lella, Sergej Monavari +2

Let be a smooth curve. In this paper we investigate the geometric properties of the double nested Hilbert scheme of points on , a moduli space introduced by the third author…

math.AG2023★ 8 cited

Tetrahedron instantons in Donaldson-Thomas theory

Nadir Fasola, Sergej Monavari

Inspired by the work of Pomoni-Yan-Zhang in String Theory, we introduce the moduli space of tetrahedron instantons as a Quot scheme and describe it as a moduli space of quiver repr…

math.AG2023★ 3 cited

A Donaldson-Thomas crepant resolution conjecture on Calabi-Yau 4-folds

Yalong Cao, Martijn Kool, Sergej Monavari

Let be a finite subgroup of whose elements have age not larger than one. In the first part of this paper, we define -theoretic stable pair invariants on the…

math.AG2022★ 15 cited

Canonical vertex formalism in DT theory of toric Calabi-Yau 4-folds

Sergej Monavari

Motivated by previous computations of Y. Cao, M. Kool and the author, we propose square roots and sign rules for the vertex and edge terms that compute Donaldson-Thomas invariants…

math.AG2021★ 5 cited

Double nested Hilbert schemes and the local stable pairs theory of curves

Sergej Monavari

We propose a variation of the classical Hilbert scheme of points - the double nested Hilbert scheme of points - which parametrizes flags of zero-dimensional subschemes whose nestin…

math.AG2021

Sur la lissité du schéma Quot ponctuel emboîté

Sergej Monavari, Andrea T. Ricolfi

In this paper we characterise the smoothness of the nested Quot scheme of points of a smooth variety, namely the moduli space parametrising flags of -dimensional quotients of a…

math.AG2021★ 21 cited

On the motive of the nested Quot scheme of points on a curve

Sergej Monavari, Andrea T. Ricolfi

Let be a smooth curve over an algebraically closed field , and let be a locally free sheaf of rank . We compute, for every , the generating function of…

math.AG2020★ 18 cited

Stable pair invariants of local Calabi-Yau 4-folds

Yalong Cao, Martijn Kool, Sergej Monavari

In 2008, Klemm-Pandharipande defined Gopakumar-Vafa type invariants of a Calabi-Yau 4-fold using Gromov-Witten theory. Recently, Cao-Maulik-Toda proposed a conjectural descript…

math.AG2020★ 22 cited

Higher rank K-theoretic Donaldson-Thomas theory of points

Nadir Fasola, Sergej Monavari, Andrea T. Ricolfi

We exploit the critical locus structure on the Quot scheme , in particular the associated symmetric obstruction theory, in ord…